Britain is a special country. We have so many great advantages: a Parliamentary democracy where we resolve great issues about our future through peaceful debate; a great trading nation, with our science and arts, our engineering and our creativity, respected the world over. And while we are not perfect, I do believe we can be a model for the multi-racial, multi-faith democracy, where people can come and make a contribution and rise to the very highest that their talent allows.
Source, in full
Speech delivered outside outside 10 Downing Street, announcing that he would resign as prime minister after British voters chose to leave the European Union in a referendum (June 24, 2016), see David Cameron's resignation speech in full (published by CNN).